I have an old production server that runs Debian on a Q9550 CPU. I want to upgrade the server but I am on a very tight budget. I can't spend more than around $600. I can get a refurbished HP ProLiant DL380P G8 with 32GB RAM and 2x E5-2660 CPU for about that price.
Will the (dual) E5-2660 be a major improvement over the Q9550? If I look at both CPU's on cpubenchmark.net, the E5-2660 has a passmark score about 3x as high as the Q9550. But all other comparison sites say they are about the same speed.